actually the Irish diaspora prefer ceili even for Irish Set dancing, as well as the "Saturday evening dance". And sure, don't they call them Fleadh as well? an evening of artistic merriment of many kinds.

An Irish ex-girlfriend I had been coaxing to go to a ceilidh, and she (protestant NI) had been saying "what is this ceilidh you talk of?" When we got there she said "sure it is just like a Saturday evening dance!"

As I said on EC - if I think I have been taken for an idiot I usually say "NEXT!"